﻿Contributions to Canadian Botany. 39 



an analysis of this residue shows it to have the composi- 

 tion of ordinary slag. 



3rd. The question as to how such infiltration was 

 accomplished cannot be answered with a full measure of 

 satisfaction. The results of our examination would seem 

 to imply the operation of capillarity as the only process 

 which will offer an adequate explanation of the case. 

 This would certainly account for the entrance of even a 

 dense fluid into the vessels of the coal, and it would find 

 its parallel in the formation of the Kootanie Cannel 

 coals by the infiltration of fluid hydro-carbons into plant 

 tissues.^ This view, however, does not 'take account of 

 the special conditions existing in the furnace and under 

 which this infiltration took place, and of such conditions 

 we haye no knowledge. Under what peculiar circum- 

 stances it is possible for conditions, such as are implied by 

 the facts before us, to exist, it is not within my province 

 to say, but upon a knowledge of them, appears to depend 

 the solution of what must otherwise remain an obscure 

 problem. 



Contributions to Canadian Botany. 



By James M. Macoun. 



IX. 



Delphinium simplex, Dougi. 



About two miles above the mouth of the Kootanie 

 Elver, B.C., 1889. {John Macoun, Herb. No. 10,597.) 

 New to Canada. 



Alyssum calycinum, L.; Macoun, Cat. Can. Plants, Vol. I., 

 p. 53. 

 Near Blackwell Station, Lambton Co., Ont. {T. C. 

 Wheatley.) 



1 Trans. R. Soc. Can. XII. iii. 30. 



